EP3025417A2 - Electric machine - Google Patents

Electric machine

Info

Publication number
EP3025417A2
EP3025417A2 EP14731966.9A EP14731966A EP3025417A2 EP 3025417 A2 EP3025417 A2 EP 3025417A2 EP 14731966 A EP14731966 A EP 14731966A EP 3025417 A2 EP3025417 A2 EP 3025417A2
Authority
EP
European Patent Office
Prior art keywords
cable
cable feedthrough
electrical machine
stator
feedthrough element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14731966.9A
Other languages
German (de)
French (fr)
Other versions
EP3025417B1 (en
Inventor
Matthias Rauch
Manfred Zimmer
Christian Brückner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP3025417A2 publication Critical patent/EP3025417A2/en
Application granted granted Critical
Publication of EP3025417B1 publication Critical patent/EP3025417B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/09—Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations

Definitions

  • the invention relates to an electrical machine according to the preamble of patent claim 1.
  • Such an electric machine is used inter alia in motor vehicles and is known from EP 2 139 094 A1.
  • the current development of electric machines leads to ever more complex and compact designs. Therefore, more and more sensors, such as temperature sensors and magnetic sensors, and also new modules are integrated, for example, an actuator for a friction clutch.
  • sensors such as temperature sensors and magnetic sensors
  • new modules are integrated, for example, an actuator for a friction clutch.
  • the casting material has a cable feed-through structure in the form of a free space, which represents a passage through the casting material.
  • An electric machine designed in this way enables a space-saving arrangement of cables, lines and hoses within the electrical machine.
  • the specially created clearance which is not present in a normal encapsulation, allows performing and arranging cables, lines or hoses within the cable gland structure.
  • the position of the cable feedthrough structure in the circumferential direction on the stator is freely selectable as required, for example, far enough away from a power connection of the connection ladder to reduce electromagnetic effects as much as possible.
  • the electrical machine shown is space-saving in comparison with other solutions.
  • cable is used in the following for the purposes of pipe and hose.
  • the cable feedthrough structure is arranged on a casting surface, which lies opposite the connecting conductors.
  • the cable does not have to be pulled into the cable feed-through structure during assembly, but can be inserted laterally. This is advantageous, inter alia, if the cable is already connected or connected to the sensor or component provided for this purpose before the arrangement or positioning within the cable feedthrough structure. This makes a simple installation possible.
  • the cable feed-through structure is trough-shaped, i. with an open or at least partially open page form.
  • an electrical cable is arranged within the cable feedthrough structure.
  • hoses for example for water cooling
  • the cable feed-through structure when viewing in a cable feedthrough direction, only a part of the cable or hose cross section can be arranged within the recess of the cable feedthrough structure, in particular the trough.
  • the cable feedthrough structure is formed by a cable feedthrough element.
  • the cable feedthrough element is arranged on or within the interconnection region of the conductor carrier element and, after casting, forms the free space of the cable feedthrough structure.
  • a simple, reproducible and uniform generation of the cable feedthrough structure is possible.
  • a tab is arranged on the cable feedthrough element which protrudes into the free space. In an arrangement of the cable feedthrough element on the casting surface, the tab allows a fixed positioning of the cable within the cable feedthrough structure, at least during assembly.
  • a retaining device is arranged on the cable feedthrough element, particularly preferably on the tab.
  • This retaining fuse may for example be designed as a retaining rib, which advantageously points to the interior of the cable feedthrough element.
  • This retaining rib allows fixing of the cable or the hose within the cable feedthrough element. Fixing reliably prevents the cable from being able to pop out of or fall out of the cable feedthrough structure during assembly or operation. This fixation is particularly advantageous during assembly, since a dropped or spiked cable, which is not located at the desired position within or on the cable feedthrough structure, can be sheared or damaged by the attachment of other components.
  • the cable feedthrough element is fixed to the conductor carrier element.
  • a possible attachment can be done by a clamping of the cable feedthrough element between two walls of the conductor carrier element, but there are also other mounting options conceivable, such as stick or fix with a clip. It has proved to be advantageous if the conductor carrier element corresponding receptacles into which the cable feedthrough element is inserted, and recesses through which the cable is guided, has. The position of the cable feedthrough element is thus determined during the introduction of the potting material and also thereafter. One Determining the position of the cable feedthrough element is not necessarily necessary.
  • the cable feedthrough element is positioned at the predetermined location during the introduction of the potting material, for example with a holding arm, then it is fixed by the potting. If the cable feedthrough element is arranged on the casting surface, there is the possibility that this example will be released by vibrations, which is why it also makes sense, for example, to arrange at least one further component in such a way that the cable feedthrough element is additionally fixed at its predetermined position.
  • mounting portions are arranged laterally on the cable feedthrough element, wherein the mounting portions facing away from the free space.
  • the mounting portions are substantially parallel to one another and lie substantially on a plane which, in turn, is oriented substantially parallel to and on the casting surface.
  • the mounting portions together with the tab form a large bearing surface to facilitate the positioning and the insertion or insertion of the cable feedthrough element into the conductor carrier element.
  • Another arrangement of the mounting sections and another combination of the mounting sections and the tab is quite conceivable.
  • the mounting portions are shaped so that they engage in correspondingly shaped recesses of the conductor carrier element, so that only a correct installation position of the cable feedthrough element is possible. This is advantageous, inter alia, when other components engage in the cable feedthrough element and thus the installation position is predetermined.
  • the cable feedthrough element is made of a material which is dimensionally stable at least up to the melting temperature of the casting material. As a result, deformations or damage to the cable feedthrough element during and after the introduction of the potting material are excluded.
  • the cable feedthrough element can be designed as a plastic part.
  • it is provided to carry out the cable feedthrough element in an electromagnetic shielding manner. This can be achieved, for example, if the cable feedthrough element is made of metal, for example of copper or aluminum. This minimizes electromagnetic effects that occur between the interconnecting conductors and the cable being carried. Since it is not desirable to use bare, conductive components within the interconnection device, a metallic cable feedthrough element can be coated with an insulating layer, for example made of plastic or ceramic.
  • Fig. 1 stator of an electrical machine with a cable feedthrough structure
  • FIG. 2 shows a detail of the stator from FIG. 1 with a cable feedthrough element
  • FIGS. 3a-d show a cable feed-through element in different views
  • FIG. 4 image detail of the stator of FIG. 1 with recesses of a
  • FIG. 1 an electric machine 4 is shown in external rotor type with a stator 10 and a rotor 6 only schematically indicated here.
  • the invention can also be integrated in electrical machines of other embodiments, such as internal rotor machines.
  • the stator 10 has a stator support 12, on which a stator lamination stack 14 is arranged.
  • the laminated stator core 14 has a yoke region 16 and a plurality
  • Stator teeth 18 (not visible, the arrangement on the stator is however indicated), which are radially outwardly and uniformly distributed on the yoke portion 1 6 are arranged. Furthermore, the stator 10 on insulating body 20, each of a stator coil 22nd are wrapped, wherein the combination of an insulating body 20 and a stator coil 22 is a coil package.
  • the insulating body 20 may be embodied inter alia in several parts.
  • a coil package is disposed on each of the stator teeth 18. The winding ends of the stator coils 22 are guided into a connection device 24, within which the stator coils 22 are connected in a connection region 25 via connecting conductors 26 to a power electronics 28.
  • the connecting conductors 26 are embedded in a conductor carrier element 30, which serves inter alia as a casting mold for a casting 32.
  • a cover plate 8 (partially shown) is arranged, which covers the stator 10 and closes so that the smallest possible axial width of the electric machine is achieved.
  • the encapsulation 32 has a cable feedthrough structure 34 in the form of a free space, to which recesses 36 of the conductor carrier element 30 are assigned.
  • the cable feed-through structure 34 and the recesses 36 form a connection 38 between an inner space 40 and a radially arranged outer space 42 of the stator.
  • This connection 38 can be used inter alia to lead cables, lines or hoses 44 in the interior 40 of the stator 10.
  • the cable feedthrough structure 34 is disposed on the casting surface facing the connecting conductors 26.
  • the cable feedthrough structure 34 is trough-shaped in this variant, in particular semicircular, wherein inside the cable feedthrough structure 34 electrical cables and lines 44 are arranged.
  • the cable feed-through structure 34 is designed as a cable feed-through element 60.
  • This cable feedthrough element 60 is arranged or fixed on the conductor carrier element 30 and partially enclosed by casting material. This is advantageous because the cable feedthrough structure 34 is uniformly reproducible independently of the potting 32.
  • the cable feed-through element 60 is inter alia clamped between side walls 48, 50 of the conductor carrier element 30, which are sufficiently tilted inward toward the connection region 25.
  • the cable feedthrough element 60 has a main body 62, in this case trough-shaped, in particular semicircular. On this main body 62 further, advantageous for this application elements are arranged below, shown in Figs. 2 and 3a - d, where it depends on the specific application, which of these embodiments are advantageous.
  • a tab 64 is arranged, which projects into the free space of the cable feedthrough element. This tab 64 is used, inter alia, as a cover, behind which the cable 44 is inserted protected.
  • a holding safety device in the form of a holding rib 66 is arranged on the lug 64, which points to the main body 62 and holds a cable 44 arranged in the cable feedthrough structure 34 between the base body 62, lug 64 and holding rib 66.
  • a positioned cable 44 is fixed within the cable feedthrough element 60. This is particularly advantageous in assembly, since a once positioned cable 44 remains at the predetermined location and can no longer be sheared off or damaged by the attachment of further elements, for example the cover plate.
  • mounting portions 68 are arranged, which point away from the base body 64.
  • the mounting portions 68 are arranged substantially parallel to each other and substantially parallel to the tab 64 to produce a large bearing surface.
  • This support surface allows easy insertion into suitable receptacles 46 of the conductor support element 30.
  • the support surface, consisting of tab 64 and mounting portions 68 is arranged substantially parallel to and on the casting surface.
  • mounting portions 68 are formed only over part of the length of the cable feedthrough element 60.
  • recordings 46 of the conductor carrier element 30, shown in FIG. 4 in combination with the embodiment of the mounting sections 68, determine a clear installation direction.
  • An installation direction can be predetermined, inter alia, if the tab 64 is formed only over part of the cable feedthrough element 60. This is the case, inter alia, when a component, for example an arm 52 of a temperature sensor holder 54, partially engages in the cable feed-through element 60 in order to take over and continue the cable 44.
  • the contact area lying inside in the mounted state is bevelled by an angle ⁇ for simple insertion of the cable feed-through element 60 (FIG. 3c).
  • the cable feed-through element 60 is first set with the beveled edge on the fitting receptacle 46 of the conductor support member 30 during assembly and then pressed into the receptacle 46 of the opposite side.
  • the contact region of the cable feed-through element 60 lying opposite the beveled contact region is adapted to the curvature of the conductor carrier element 30 (FIG. 3d).
  • the cable feed-through element 60 undergoes no deformation or damage during the introduction of the casting material, it is advantageous to use a material which is dimensionally stable even at the melting temperature of the casting material.
  • the material may be the same as that used for the conductor support member 30.
  • the cable feedthrough element 60 is designed as a plastic part.
  • the cable feedthrough element 60 may alternatively be designed to be electromagnetic shielding. This reduces electromagnetic effects between the connection conductors 26 and the cables 44 disposed within the cable feed-through member 60. Attributes electrical machine

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to an electric machine 4 comprising a rotor 6, a stator 10 with stator coils 22 arranged on said stator, and a wiring device 24 with a conductor support element 30 and connecting conductors 26 which are arranged on said conductor support element 30 and which are wired with winding wire ends of the stator coils 22 within a wiring region 25, said wiring region 25 being filled with an insulating cast material. The electric machine 4 is characterized in that the cast material has a cable feedthrough structure 34 in the form of an free space, which forms a passage through the cast material.

Description

Elektrische Maschine  Electric machine
Die Erfindung betrifft eine elektrische Maschine gemäß dem Oberbegriff des Patentanspruchs 1 . The invention relates to an electrical machine according to the preamble of patent claim 1.
Eine solche elektrische Maschine wird unter anderem in Kraftfahrzeugen verwendet und ist aus der EP 2 139 094 A1 bekannt. Die gegenwärtige Entwicklung elektrischer Maschinen führt zu immer komplexeren und kompakteren Bauweisen. Daher werden immer mehr Sensoren, beispielsweise Temperatursensoren und Magnetsensoren, und auch neue Baugruppen integriert, beispielsweise ein Aktuator für eine Reibkupplung. In dieser Hinsicht ergibt sich das Erfordernis die dafür notwendigen Kabel, Leitungen, Schläuche, etc. in elektrischen Maschinen platzsparend in den Gesamtaufbau zu integrieren, wobei eine besondere Schwierigkeit darin besteht diese von außen platzsparend in einen geschlossenen Aufnahmeraum innerhalb eines ringförmigen Stators einzuführen. Such an electric machine is used inter alia in motor vehicles and is known from EP 2 139 094 A1. The current development of electric machines leads to ever more complex and compact designs. Therefore, more and more sensors, such as temperature sensors and magnetic sensors, and also new modules are integrated, for example, an actuator for a friction clutch. In this regard, there is a need to integrate the necessary cables, lines, hoses, etc. in electrical machines to save space in the overall structure, with a particular difficulty is to introduce them from the outside to save space in a closed receiving space within an annular stator.
Es stellt sich somit die Aufgabe, Kabel, Leitungen, Schläuche, etc. möglichst platzsparend in der elektrischen Maschine anzuordnen. It thus raises the task, cables, lines, hoses, etc. as possible to save space in the electrical machine to order.
Diese vorstehende Aufgabe wird mittels einer elektrischen Maschine gemäß dem unabhängigen Patentanspruch gelöst. This above object is achieved by means of an electric machine according to the independent claim.
Gemäß der Erfindung wird eine gattungsgemäße elektrische Maschine vorgeschlagen, bei der das Gussmaterial eine Kabeldurchführungsstruktur in Form eines Freiraums aufweist, der einen Durchgang durch das Gussmaterial darstellt. According to the invention, a generic electric machine is proposed in which the casting material has a cable feed-through structure in the form of a free space, which represents a passage through the casting material.
Eine auf diese Weise ausgeführte elektrische Maschine ermöglicht eine platzsparende Anordnung von Kabeln, Leitungen und Schläuchen innerhalb der elektrischen Maschine. Der speziell geschaffene Freiraum, der bei einem normalen Verguss nicht vorhanden ist, ermöglicht ein Durchführen und Anordnen von Kabeln, Leitungen oder Schläuchen innerhalb der Kabeldurchführungsstruktur. Die Position der Kabeldurchführungsstruktur in Umfangsrichtung am Stator ist je nach Anforderung frei wählbar, beispielsweise weit genug entfernt von einem Leistungsanschluss der Verbindungs- leiter, um elektromagnetische Effekte größtmöglich zu verringern. Die dargestellte elektrische Maschine ist im Vergleich mit anderen Lösungen bauraumsparend. An electric machine designed in this way enables a space-saving arrangement of cables, lines and hoses within the electrical machine. The specially created clearance, which is not present in a normal encapsulation, allows performing and arranging cables, lines or hoses within the cable gland structure. The position of the cable feedthrough structure in the circumferential direction on the stator is freely selectable as required, for example, far enough away from a power connection of the connection ladder to reduce electromagnetic effects as much as possible. The electrical machine shown is space-saving in comparison with other solutions.
Sofern nicht anders erwähnt, wird im Folgenden der Begriff Kabel stellvertretend für Leitung und Schlauch verwendet. Unless otherwise stated, the term cable is used in the following for the purposes of pipe and hose.
In einer vorteilhaften Ausführungsform ist die Kabeldurchführungsstruktur an einer Gussoberfläche angeordnet, die den Verbindungsleitern gegenüberliegt. Einer der Vorteile dieser Variante ist, dass das Kabel bei der Montage nicht in die Kabeldurchführungsstruktur eingezogen werden muss, sondern seitlich eingelegt werden kann. Dies ist unter anderem von Vorteil, wenn das Kabel bereits vor der Anordnung bzw. Positionierung innerhalb der Kabeldurchführungsstruktur an dem dafür vorgesehenen Sensor oder Bauteil angeschlossen bzw. mit diesem verbunden ist. Dadurch ist eine einfache Montage möglich. In an advantageous embodiment, the cable feedthrough structure is arranged on a casting surface, which lies opposite the connecting conductors. One of the advantages of this variant is that the cable does not have to be pulled into the cable feed-through structure during assembly, but can be inserted laterally. This is advantageous, inter alia, if the cable is already connected or connected to the sensor or component provided for this purpose before the arrangement or positioning within the cable feedthrough structure. This makes a simple installation possible.
Mit Vorteil ist die Kabeldurchführungsstruktur wannenförmig, d.h. mit einer offenen bzw. zumindest teilweise offenen Seite auszubilden. Advantageously, the cable feed-through structure is trough-shaped, i. with an open or at least partially open page form.
Bevorzugt ist innerhalb der Kabeldurchführungsstruktur ein elektrisches Kabel angeordnet. Es ist jedoch auch denkbar Schläuche, beispielsweise für eine Wasserkühlung, in der Kabeldurchführungsstruktur anzuordnen. Des Weiteren kann, bei Blickrichtung in eine Kabeldurchführungsrichtung, auch nur ein Teil des Kabel- bzw. Schlauchquerschnitts innerhalb der Vertiefung der Kabeldurchführungsstruktur, insbesondere der Wanne angeordnet sein. Preferably, an electrical cable is arranged within the cable feedthrough structure. However, it is also conceivable to arrange hoses, for example for water cooling, in the cable feed-through structure. Furthermore, when viewing in a cable feedthrough direction, only a part of the cable or hose cross section can be arranged within the recess of the cable feedthrough structure, in particular the trough.
Bei einer vorteilhaften Ausführung ist die Kabeldurchführungsstruktur durch ein Kabeldurchführungselement ausgebildet. Das Kabeldurchführungselement wird dabei an oder innerhalb des Verschaltungsbereichs des Leiterträgerelements angeordnet und bildet nach dem Vergießen den Freiraum der Kabeldurchführungsstruktur aus. Dadurch ist eine einfache, reproduzierbare und gleichmäßige Erzeugung der Kabeldurchführungsstruktur möglich. Günstigerweise ist an dem Kabeldurchführungselement eine Lasche angeordnet, die in den Freiraum ragt. Bei einer Anordnung des Kabeldurchführungselements an der Vergussoberfläche ermöglicht die Lasche eine festgelegte Positionierung des Kabels innerhalb der Kabeldurchführungsstruktur, zumindest während der Montage. In an advantageous embodiment, the cable feedthrough structure is formed by a cable feedthrough element. The cable feedthrough element is arranged on or within the interconnection region of the conductor carrier element and, after casting, forms the free space of the cable feedthrough structure. As a result, a simple, reproducible and uniform generation of the cable feedthrough structure is possible. Conveniently, a tab is arranged on the cable feedthrough element which protrudes into the free space. In an arrangement of the cable feedthrough element on the casting surface, the tab allows a fixed positioning of the cable within the cable feedthrough structure, at least during assembly.
In einer Weiterbildung ist an dem Kabeldurchführungselement, besonders bevorzugt an der Lasche eine Haltesicherung angeordnet. Diese Haltesicherung kann beispielsweise als Halterippe ausgebildet sein, die vorteilhafterweise zum Innenraum des Kabeldurchführungselements hinweist. Diese Halterippe ermöglicht ein Fixieren des Kabels bzw. des Schlauchs innerhalb des Kabeldurchführungselements. Durch die Fixierung wird sicher vermieden, dass das Kabel während der Montage oder im Betrieb aus der Kabeldurchführungsstruktur herausspringen oder herausfallen kann. Diese Fixierung ist besonders während der Montage von Vorteil, da ein herausgefallenes bzw. herausgesprungenes Kabel, das nicht an der gewünschten Position innerhalb oder an der Kabeldurchführungsstruktur angeordnet ist, durch den Anbau weiterer Bauteile abgeschert oder beschädigt werden kann. In a development, a retaining device is arranged on the cable feedthrough element, particularly preferably on the tab. This retaining fuse may for example be designed as a retaining rib, which advantageously points to the interior of the cable feedthrough element. This retaining rib allows fixing of the cable or the hose within the cable feedthrough element. Fixing reliably prevents the cable from being able to pop out of or fall out of the cable feedthrough structure during assembly or operation. This fixation is particularly advantageous during assembly, since a dropped or spiked cable, which is not located at the desired position within or on the cable feedthrough structure, can be sheared or damaged by the attachment of other components.
Gemäß einer weiteren Ausführungsform hat es sich als vorteilhaft erwiesen, die Lasche nur über einen Teil des Kabeldurchführungselements auszubilden. Dies ist von Vorteil, wenn beispielsweise ein weiteres Bauteil einseitig und teilweise in den Bereich der Kabeldurchführungsstruktur eingreift, um das Kabel direkt an dem Kabeldurchführungselement aufzunehmen und weiterzuführen, beispielsweise mit einem Arm. According to a further embodiment, it has proved to be advantageous to form the tab only over part of the cable feedthrough element. This is advantageous if, for example, another component engages on one side and partially in the region of the cable feed-through structure in order to receive and continue the cable directly on the cable feed-through element, for example with an arm.
In einer weiteren vorteilhaften Ausbildungsvariante ist das Kabeldurchführungselement an dem Leiterträgerelement festgelegt. Eine mögliche Befestigung kann durch eine Klemmung des Kabeldurchführungselements zwischen zwei Wänden des Leiterträgerelements geschehen, es sind jedoch auch andere Befestigungsmöglichkeiten denkbar, wie beispielsweise kleben oder fixieren mit einem Clip. Es hat sich als vorteilhaft erwiesen, wenn das Leiterträgerelement entsprechende Aufnahmen, in die das Kabeldurchführungselement eingesetzt ist, und Aussparungen, durch die das Kabel geführt wird, aufweist. Die Position des Kabeldurchführungselements ist damit während des Einbringens des Vergussmaterials und auch danach festgelegt. Ein Festlegen der Position des Kabeldurchführungselements ist nicht zwangsweise notwendig. Wird das Kabeldurchführungselement während dem Einbringen des Vergussmaterials an der vorbestimmten Stelle, beispielsweise mit einem Haltearm, positioniert, ist es danach durch den Verguss fixiert. Ist das Kabeldurchführungselement an der Gussoberfläche angeordnet, besteht die Möglichkeit, dass sich dieses beispielsweises durch Vibrationen löst, weshalb es z.B. auch aus Bauraumgründen sinnvoll erscheint, mindestens ein weiteres Bauteil so anzuordnen, dass das Kabeldurchführungselement an seiner vorgegebenen Position zusätzlich festgelegt ist. In a further advantageous embodiment variant, the cable feedthrough element is fixed to the conductor carrier element. A possible attachment can be done by a clamping of the cable feedthrough element between two walls of the conductor carrier element, but there are also other mounting options conceivable, such as stick or fix with a clip. It has proved to be advantageous if the conductor carrier element corresponding receptacles into which the cable feedthrough element is inserted, and recesses through which the cable is guided, has. The position of the cable feedthrough element is thus determined during the introduction of the potting material and also thereafter. One Determining the position of the cable feedthrough element is not necessarily necessary. If the cable feedthrough element is positioned at the predetermined location during the introduction of the potting material, for example with a holding arm, then it is fixed by the potting. If the cable feedthrough element is arranged on the casting surface, there is the possibility that this example will be released by vibrations, which is why it also makes sense, for example, to arrange at least one further component in such a way that the cable feedthrough element is additionally fixed at its predetermined position.
Vorteilhafterweise sind Montageabschnitte seitlich an dem Kabeldurchführungselement angeordnet, wobei die Montageabschnitte von dem Freiraum weg weisen. In bevorzugter weise sind die Montageabschnitte im Wesentlichen parallel zueinander und liegen im Wesentlichen auf einer Ebene, die wiederum im Wesentlichen parallel zu und an der Gussoberfläche ausgerichtet ist. Die Montageabschnitte bilden gemeinsam mit der Lasche eine große Auflagefläche, um das Positionieren und das Eindrücken bzw. Einsetzen des Kabeldurchführungselements in das Leiterträgerelement zu erleichtern. Eine andere Anordnung der Montageabschnitte sowie eine andere Kombination der Montageabschnitten und der Lasche ist durchaus denkbar. Des Weiteren ist es vorteilhaft, wenn die Montageabschnitte so geformt sind, dass diese in entsprechend geformte Ausnehmungen des Leiterträgerelements eingreifen, damit nur eine korrekte Einbaulage des Kabeldurchführungselements möglich ist. Dies ist unter anderem dann von Vorteil, wenn andere Bauteile in das Kabeldurchführungselement eingreifen und dadurch die Einbaulage vorgegeben ist. Advantageously, mounting portions are arranged laterally on the cable feedthrough element, wherein the mounting portions facing away from the free space. Preferably, the mounting portions are substantially parallel to one another and lie substantially on a plane which, in turn, is oriented substantially parallel to and on the casting surface. The mounting portions together with the tab form a large bearing surface to facilitate the positioning and the insertion or insertion of the cable feedthrough element into the conductor carrier element. Another arrangement of the mounting sections and another combination of the mounting sections and the tab is quite conceivable. Furthermore, it is advantageous if the mounting portions are shaped so that they engage in correspondingly shaped recesses of the conductor carrier element, so that only a correct installation position of the cable feedthrough element is possible. This is advantageous, inter alia, when other components engage in the cable feedthrough element and thus the installation position is predetermined.
Es hat sich als vorteilhaft herausgestellt, dass das Kabeldurchführungselement aus einem Material hergestellt ist, das mindestens bis zur Schmelztemperatur des Gussmaterials formstabil ist. Dadurch sind Deformationen oder Beschädigungen des Kabeldurchführungselements während und nach dem Einbringen des Vergussmaterials ausgeschlossen. It has been found to be advantageous that the cable feedthrough element is made of a material which is dimensionally stable at least up to the melting temperature of the casting material. As a result, deformations or damage to the cable feedthrough element during and after the introduction of the potting material are excluded.
Mit besonderem Vorteil kann das Kabeldurchführungselement als Kunststoffteil ausgeführt sein. Gemäß einer weiteren bevorzugten Ausbildungsvariante ist vorgesehen, das Kabeldurchführungselement elektromagnetisch abschirmend auszuführen. Dies kann beispielsweise erreicht werden, wenn das Kabeldurchführungselement metallisch, z.B. aus Kupfer oder Aluminium ausgeführt ist. Dadurch werden elektromagnetische Effekte, die zwischen den Verbindungsleitern und dem durchgeführten Kabel auftreten minimiert. Da es nicht wünschenswert ist, innerhalb der Verschaltungseinrichtung blanke, leitende Bauteile einzusetzen, kann ein metallisches Kabeldurchführungselement mit einer isolierenden Schicht, z.B. aus Kunststoff oder Keramik, überzogen sein. With particular advantage, the cable feedthrough element can be designed as a plastic part. According to a further preferred embodiment, it is provided to carry out the cable feedthrough element in an electromagnetic shielding manner. This can be achieved, for example, if the cable feedthrough element is made of metal, for example of copper or aluminum. This minimizes electromagnetic effects that occur between the interconnecting conductors and the cable being carried. Since it is not desirable to use bare, conductive components within the interconnection device, a metallic cable feedthrough element can be coated with an insulating layer, for example made of plastic or ceramic.
Nachfolgend wird die Erfindung anhand der beigefügten Figuren beispielhaft erläutert. The invention will be explained by way of example with reference to the accompanying figures.
Es zeigen: Show it:
Fig. 1 Stator einer elektrischen Maschine mit einer Kabeldurchführungsstruktur; Fig. 1 stator of an electrical machine with a cable feedthrough structure;
Fig. 2 Bildausschnitt des Stators aus Fig. 1 mit einem Kabeldurchführungselement;  FIG. 2 shows a detail of the stator from FIG. 1 with a cable feedthrough element; FIG.
Fig. 3a - d ein Kabeldurchführungselement in verschiedenen Ansichten;  FIGS. 3a-d show a cable feed-through element in different views;
Fig. 4 Bildausschnitt des Stators aus Fig. 1 mit Aussparungen eines Fig. 4 image detail of the stator of FIG. 1 with recesses of a
Leiterträgerelements.  Head support element.
In Fig. 1 ist eine elektrische Maschine 4 in Außenläuferbauart mit einem Stator 10 und einem hier nur schematisch angedeuteten Rotor 6 dargestellt. Die Erfindung lässt sich außerdem auch in elektrische Maschinen anderer Ausführungsarten integrieren, beispielsweise Maschinen in Innenläuferbauart. In Fig. 1, an electric machine 4 is shown in external rotor type with a stator 10 and a rotor 6 only schematically indicated here. The invention can also be integrated in electrical machines of other embodiments, such as internal rotor machines.
Der Stator 10 weist einen Statorträger 12 auf, an dem ein Statorblechpaket 14 angeordnet ist. Das Statorblechpaket 14 weist einen Jochbereich 1 6 und mehrere The stator 10 has a stator support 12, on which a stator lamination stack 14 is arranged. The laminated stator core 14 has a yoke region 16 and a plurality
Statorzähne 18 auf (nicht sichtbar, die Anordnung am Stator ist jedoch angedeutet), die radial außen und gleichmäßig verteilt am Jochbereich 1 6 angeordnet sind. Des Weiteren weist der Stator 10 Isolierkörper 20 auf, die jeweils von einer Statorspule 22 umwickelt sind, wobei die Kombination eines Isolierkörpers 20 und einer Statorspule 22 ein Spulenpaket darstellt. Der Isolierkörper 20 kann unter anderem mehrteilig ausgeführt sein. Ein Spulenpaket ist jeweils an einem der Statorzähne 18 angeordnet. Die Wicklungsenden der Statorspulen 22 sind in eine Verschaltungseinrich- tung 24 geführt, innerhalb derer die Statorspulen 22 in einem Verschaltungsbe- reich 25 über Verbindungsleiter 26 mit einer Leistungselektronik 28 verschaltet sind. Die Verbindungsleiter 26 sind in einem Leiterträgerelement 30 eingebettet, welches unter anderem als Gussform für einen Verguss 32 dient. An dem Stator 10 ist außerdem eine Abdeckplatte 8 (teilweise dargestellt) angeordnet, die den Stator 10 derart abdeckt und verschließt, dass eine möglichst geringe axiale Baubreite der elektrischen Maschine erreicht wird. Stator teeth 18 (not visible, the arrangement on the stator is however indicated), which are radially outwardly and uniformly distributed on the yoke portion 1 6 are arranged. Furthermore, the stator 10 on insulating body 20, each of a stator coil 22nd are wrapped, wherein the combination of an insulating body 20 and a stator coil 22 is a coil package. The insulating body 20 may be embodied inter alia in several parts. A coil package is disposed on each of the stator teeth 18. The winding ends of the stator coils 22 are guided into a connection device 24, within which the stator coils 22 are connected in a connection region 25 via connecting conductors 26 to a power electronics 28. The connecting conductors 26 are embedded in a conductor carrier element 30, which serves inter alia as a casting mold for a casting 32. On the stator 10 also a cover plate 8 (partially shown) is arranged, which covers the stator 10 and closes so that the smallest possible axial width of the electric machine is achieved.
Der Verguss 32 weist eine Kabeldurchführungsstruktur 34 in Form eines Freiraums auf, dem Aussparungen 36 des Leiterträgerelements 30 zugeordnet sind. Die Kabeldurchführungsstruktur 34 und die Aussparungen 36 bilden eine Verbindung 38 zwischen einem Innenraum 40 und einem dazu radial angeordneten Außenraum 42 des Stators. Diese Verbindung 38 kann unter anderem dazu verwendet werden um Kabel, Leitungen oder Schläuche 44 in den Innenraum 40 des Stators 10 zu führen. The encapsulation 32 has a cable feedthrough structure 34 in the form of a free space, to which recesses 36 of the conductor carrier element 30 are assigned. The cable feed-through structure 34 and the recesses 36 form a connection 38 between an inner space 40 and a radially arranged outer space 42 of the stator. This connection 38 can be used inter alia to lead cables, lines or hoses 44 in the interior 40 of the stator 10.
Bei dieser Ausführungsform ist die Kabeldurchführungsstruktur 34 an der Gussoberfläche, die den Verbindungsleitern 26 gegenüberliegt, angeordnet. Es besteht jedoch auch die Möglichkeit die Kabeldurchführungsstruktur 34 innerhalb des Vergusses 32 anzuordnen, damit diese vollständig vom Verguss 32 umschlossen ist. In this embodiment, the cable feedthrough structure 34 is disposed on the casting surface facing the connecting conductors 26. However, it is also possible to arrange the cable feed-through structure 34 within the potting 32, so that it is completely enclosed by the potting 32.
Die Kabeldurchführungsstruktur 34 ist in dieser Variante wannenförmig ausgebildet, insbesondere halbkreisförmig, wobei innerhalb der Kabeldurchführungsstruktur 34 elektrische Kabel und Leitungen 44 angeordnet sind. The cable feedthrough structure 34 is trough-shaped in this variant, in particular semicircular, wherein inside the cable feedthrough structure 34 electrical cables and lines 44 are arranged.
In einer zweiten Ausführungsvariante, gezeigt in Fig. 2, ist die Kabeldurchführungsstruktur 34 als Kabeldurchführungselement 60 ausgebildet. Dieses Kabeldurchführungselement 60 ist an dem Leiterträgerelement 30 angeordnet oder festgelegt und von Gussmaterial teilweise umschlossen. Dies ist von Vorteil, da die Kabeldurchführungsstruktur 34 unabhängig von dem Verguss 32 gleichmäßig reproduzierbar ist. Das Kabeldurchführungselement 60 ist unter anderem zwischen Seitenwänden 48,50 des Leiterträgerelements 30 eingeklemmt, die ausreichend zum Verschal- tungsbereich 25 hin nach innen gekippt sind. In a second embodiment variant, shown in FIG. 2, the cable feed-through structure 34 is designed as a cable feed-through element 60. This cable feedthrough element 60 is arranged or fixed on the conductor carrier element 30 and partially enclosed by casting material. This is advantageous because the cable feedthrough structure 34 is uniformly reproducible independently of the potting 32. The cable feed-through element 60 is inter alia clamped between side walls 48, 50 of the conductor carrier element 30, which are sufficiently tilted inward toward the connection region 25.
Das Kabeldurchführungselement 60 weist einen Grundkörper 62 auf, in diesem Fall wannenförmig, insbesondere halbkreisförmig. An diesem Grundkörper 62 sind im Folgenden weitere, für diese Anwendung vorteilhafte Elemente angeordnet, dargestellt in den Fig. 2 und 3a - d, wobei es von dem konkreten Anwendungsfall abhängt, welche dieser Ausgestaltungen vorteilhaft sind. The cable feedthrough element 60 has a main body 62, in this case trough-shaped, in particular semicircular. On this main body 62 further, advantageous for this application elements are arranged below, shown in Figs. 2 and 3a - d, where it depends on the specific application, which of these embodiments are advantageous.
An dem Grundkörper 62 ist eine Lasche 64 angeordnet, die in den Freiraum des Kabeldurchführungselements ragt. Diese Lasche 64 dient unter anderem als Abdeckung, hinter der das Kabel 44 geschützt eingelegt ist. On the base 62, a tab 64 is arranged, which projects into the free space of the cable feedthrough element. This tab 64 is used, inter alia, as a cover, behind which the cable 44 is inserted protected.
Des Weiteren ist an der Lasche 64 eine Haltesicherung in Form einer Halterippe 66 angeordnet, die zum Grundkörper 62 hinweist und ein in der Kabeldurchführungsstruktur 34 angeordnetes Kabel 44 zwischen Grundkörper 62, Lasche 64 und Halterippe 66 festhält. Ein derart positioniertes Kabel 44 ist innerhalb des Kabeldurchführungselements 60 fixiert. Dies ist besonders bei der Montage von Vorteil, da ein einmal positioniertes Kabel 44 an dem vorgegebenen Ort verharrt und nicht mehr durch den Anbau weiterer Elemente, beispielsweise der Abdeckplatte, abgeschert oder beschädigt werden kann. Furthermore, a holding safety device in the form of a holding rib 66 is arranged on the lug 64, which points to the main body 62 and holds a cable 44 arranged in the cable feedthrough structure 34 between the base body 62, lug 64 and holding rib 66. Such a positioned cable 44 is fixed within the cable feedthrough element 60. This is particularly advantageous in assembly, since a once positioned cable 44 remains at the predetermined location and can no longer be sheared off or damaged by the attachment of further elements, for example the cover plate.
An dem Grundkörper 62 sind außerdem Montageabschnitte 68 angeordnet, die vom Grundkörper 64 wegweisen. Die Montageabschnitte 68 sind im Wesentlichen parallel zueinander und im Wesentlichen parallel zur Lasche 64 angeordnet um eine große Auflagefläche zu erzeugen. Diese Auflagefläche ermöglicht ein einfaches Eindrücken in passende Aufnahmen 46 des Leiterträgerelements 30. Dabei ist die Auflagefläche, bestehend aus Lasche 64 und Montageabschnitten 68 im Wesentlichen parallel zur und an der Gussoberfläche angeordnet. On the main body 62 also mounting portions 68 are arranged, which point away from the base body 64. The mounting portions 68 are arranged substantially parallel to each other and substantially parallel to the tab 64 to produce a large bearing surface. This support surface allows easy insertion into suitable receptacles 46 of the conductor support element 30. In this case, the support surface, consisting of tab 64 and mounting portions 68 is arranged substantially parallel to and on the casting surface.
Um eine eindeutige Einbaurichtung vorzugeben, sind Montageabschnitte 68 nur über einen Teil der Länge des Kabeldurchführungselements 60 ausgebildet. Die entspre- chend ausgeführten Aufnahmen 46 des Leiterträgerelements 30, dargestellt in Fig. 4, legen in Kombination mit der Ausführung der Montageabschnitte 68 eine eindeutige Einbaurichtung fest. To specify a clear installation direction, mounting portions 68 are formed only over part of the length of the cable feedthrough element 60. The corresponding Accordingly, recordings 46 of the conductor carrier element 30, shown in FIG. 4, in combination with the embodiment of the mounting sections 68, determine a clear installation direction.
Eine Einbaurichtung kann unter anderem dann vorgegeben sein, wenn die Lasche 64 nur über einen Teil des Kabeldurchführungselements 60 ausgebildet ist. Dies ist unter anderem dann der Fall, wenn ein Bauteil, beispielsweise ein Arm 52 eines Temperatursensorhalters 54, teilweise in das Kabeldurchführungselement 60 eingreift, um das Kabel 44 zu übernehmen und weiterzuführen. An installation direction can be predetermined, inter alia, if the tab 64 is formed only over part of the cable feedthrough element 60. This is the case, inter alia, when a component, for example an arm 52 of a temperature sensor holder 54, partially engages in the cable feed-through element 60 in order to take over and continue the cable 44.
Da die Seitenwände 48, 50 zueinander, also zu dem Verschaltungsbereich 25 hin gekippt sind, ist zum einfachen Einsetzen des Kabeldurchführungselements 60 der im montierten Zustand innen liegende Kontaktbereich um einen Winkel α abgeschrägt (Fig. 3c). Das Kabeldurchführungselement 60 wird bei der Montage zuerst mit der abgeschrägten Kante an der passenden Aufnahme 46 des Leiterträgerelements 30 angesetzt und danach in die Aufnahme 46 der gegenüberliegenden Seite eingedrückt. Zusätzlich dazu ist der, dem abgeschrägten Kontaktbereich gegenüberliegende Kontaktbereich des Kabeldurchführungselements 60 an die Krümmung des Leiterträgerelements 30 angepasst (Fig. 3d). Since the side walls 48, 50 are tilted toward one another, that is to say towards the connection area 25, the contact area lying inside in the mounted state is bevelled by an angle α for simple insertion of the cable feed-through element 60 (FIG. 3c). The cable feed-through element 60 is first set with the beveled edge on the fitting receptacle 46 of the conductor support member 30 during assembly and then pressed into the receptacle 46 of the opposite side. In addition, the contact region of the cable feed-through element 60 lying opposite the beveled contact region is adapted to the curvature of the conductor carrier element 30 (FIG. 3d).
Damit das Kabeldurchführungselement 60 während dem Einbringen des Gussmaterials keine Deformation oder Beschädigung erfährt, ist es von Vorteil ein Material zu verwenden, das auch bei der Schmelztemperatur des Gussmaterials formstabil ist. Das Material kann unter anderem das Selbe sein, welches für das Leiterträgerelement 30 verwendet wird. In order that the cable feed-through element 60 undergoes no deformation or damage during the introduction of the casting material, it is advantageous to use a material which is dimensionally stable even at the melting temperature of the casting material. Among other things, the material may be the same as that used for the conductor support member 30.
In einer bevorzugten Variante wird das Kabeldurchführungselement 60 als Kunststoffteil ausgeführt. In a preferred variant, the cable feedthrough element 60 is designed as a plastic part.
Das Kabeldurchführungselement 60 kann alternativ elektromagnetisch abschirmend ausgeführt sein. Dadurch werden elektromagnetische Effekte zwischen den Verbindungsleitern 26 und den Kabeln 44, die innerhalb des Kabeldurchführungselements 60 angeordnet sind, verringert. Bezuqszeichen Elektrische Maschine The cable feedthrough element 60 may alternatively be designed to be electromagnetic shielding. This reduces electromagnetic effects between the connection conductors 26 and the cables 44 disposed within the cable feed-through member 60. Attributes electrical machine
Rotor rotor
Abdeckung cover
Stator stator
Statorträger stator
Statorblechpaket stator lamination
Jochbereich yoke
Statorzähne stator teeth
Isolierkörper insulator
Statorspule stator
Verschaltungseinrichtung Connecting device
Verschaltungsbereich Verschaltungsbereich
Verbindungsleiter connecting conductors
Leistungselektronik power electronics
Leiterträgerelement Head support element
Verguss grouting
Kabeldurchführungsstruktur / Freiraum Aussparungen Cable passage structure / clearance recesses
Verbindung connection
Innenraum inner space
Außenraum outer space
Kabel / Leitung / Schlauch Cable / conduit / hose
Aufnahme admission
Seitenwand Side wall
Seitenwand Side wall
Arm poor
Temperatursensorhalter Temperature sensor holder
Leistungsanschluss power connection
Kabeldurchführungselement Grommet
Grundkörper body
Lasche Haltesicherung / Halterippe Montageabschnitt flap Retaining fuse / retaining rib mounting section
Winkel angle

Claims

Patentansprüche claims
1 . Elektrische Maschine 4 umfassend 1 . Electric machine 4 comprising
- einen Rotor 6,  a rotor 6,
- einen Stator 10 mit daran angeordneten Statorspulen 22,  a stator 10 with stator coils 22 arranged thereon,
- eine Verschaltungseinrichtung 24 mit einem Leiterträgerelement 30 und mit an diesem angeordneten Verbindungsleitern 26,  a connection device 24 having a conductor carrier element 30 and connecting conductors 26 arranged thereon,
- die mit Wicklungsdrahtenden der Statorspulen 22 innerhalb eines Verschal- tungsbereichs 25 verschaltet sind,  - Which are connected to winding wire ends of the stator coils 22 within a Verschaltungsbereich 25,
- wobei der Verschaltungsbereich 25 mit einem isolierenden Gussmaterial gefüllt ist,  wherein the interconnection region 25 is filled with an insulating casting material,
dadurch gekennzeichnet, dass das Gussmaterial eine Kabeldurchführungsstruktur 34 in Form eines Freiraums aufweist, der einen Durchgang durch das Gussmaterial darstellt. characterized in that the casting material comprises a cable feedthrough structure 34 in the form of a clearance that forms a passageway through the casting material.
2. Elektrische Maschine 4 nach Anspruch 1 , dadurch gekennzeichnet, dass die Kabeldurchführungsstruktur 34 an einer Gussoberfläche angeordnet ist, die den Verbindungsleitern 26 gegenüberliegt. 2. Electrical machine 4 according to claim 1, characterized in that the cable feedthrough structure 34 is arranged on a casting surface, which is opposite to the connecting conductors 26.
3. Elektrische Maschine 4 nach Anspruch 2, dadurch gekennzeichnet, dass die Kabeldurchführungsstruktur 34 wannenförmig ausgebildet ist. 3. Electrical machine 4 according to claim 2, characterized in that the cable feedthrough structure 34 is formed trough-shaped.
4. Elektrische Maschine 4 nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass ein elektrisches Kabel 44 innerhalb des Freiraums 34 der Kabeldurchführungsstruktur 34 angeordnet ist. 4. Electrical machine 4 according to one of claims 1 to 3, characterized in that an electrical cable 44 is disposed within the free space 34 of the cable feedthrough structure 34.
5. Elektrische Maschine 4 nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass ein Kabeldurchführungselement 60 die Kabeldurchführungsstruktur 34 ausbildet. 5. Electrical machine 4 according to one of claims 1 to 4, characterized in that a cable feedthrough element 60 forms the cable feedthrough structure 34.
6. Elektrische Maschine 4 nach Anspruch 5, dadurch gekennzeichnet, dass an dem Kabeldurchführungselement 60 eine Lasche 64 angeordnet ist, die in den Freiraum des Kabeldurchführungselements 60 ragt. 6. Electrical machine 4 according to claim 5, characterized in that on the cable feedthrough element 60, a tab 64 is arranged, which projects into the free space of the cable feedthrough element 60.
7. Elektrische Maschine 4 nach Anspruch 6, dadurch gekennzeichnet, dass das Kabeldurchführungselement 60 eine Haltesicherung 66 aufweist. 7. Electrical machine 4 according to claim 6, characterized in that the cable feedthrough element 60 has a retaining fuse 66.
8. Elektrische Maschine 4 nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass an dem Kabeldurchführungselement Montageabschnitte 68 angeordnet sind. 8. Electrical machine 4 according to one of claims 5 to 7, characterized in that arranged on the cable bushing mounting portions 68.
9. Elektrische Maschine 4 nach Anspruch 8, dadurch gekennzeichnet, dass die Lasche 64 und die Montageabschnitte 68 im Wesentlichen in einer Ebene angeordnet sind, wobei die Ebene im Wesentlichen parallel zur Gussoberfläche ausgerichtet ist. 9. Electrical machine 4 according to claim 8, characterized in that the tab 64 and the mounting portions 68 are arranged substantially in a plane, wherein the plane is aligned substantially parallel to the casting surface.
10. Elektrische Maschine 4 nach einem der Ansprüche 5 bis 9, dadurch gekennzeichnet, dass das Kabeldurchführungselement 60 an dem Leiterträgerelement 30 festgelegt ist. 10. Electrical machine 4 according to one of claims 5 to 9, characterized in that the cable feedthrough element 60 is fixed to the conductor carrier element 30.
1 1 . Elektrische Maschine 4 nach einem der Ansprüche 5 bis 10, dadurch gekennzeichnet, dass das Kabeldurchführungselement 60 aus einem Material hergestellt ist, das mindestens bis zur Schmelztemperatur des Gussmaterials formstabil ist. 1 1. Electric machine 4 according to one of claims 5 to 10, characterized in that the cable feedthrough element 60 is made of a material which is dimensionally stable at least up to the melting temperature of the casting material.
12. Elektrische Maschine 4 nach einem der Ansprüche 5 bis 1 1 , dadurch gekennzeichnet, dass das Kabeldurchführungselement 60 als Kunststoffteil ausgeführt ist. 12. Electrical machine 4 according to one of claims 5 to 1 1, characterized in that the cable feedthrough element 60 is designed as a plastic part.
13. Elektrische Maschine 4 nach einem der Ansprüche 5 bis 12, dadurch gekennzeichnet, dass das Kabeldurchführungselement 60 elektromagnetisch abschirmend ausgeführt ist. 13. Electrical machine 4 according to one of claims 5 to 12, characterized in that the cable feedthrough element 60 is designed to be electromagnetically shielding.
EP14731966.9A 2013-07-23 2014-06-23 Electric machine Not-in-force EP3025417B1 (en)

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JP6606072B2 (en) 2019-11-13
EP3025417B1 (en) 2018-09-12
US20160164366A1 (en) 2016-06-09
JP2016525338A (en) 2016-08-22
CN105409098B (en) 2018-12-14
DE102013214386A1 (en) 2015-01-29
WO2015010838A3 (en) 2015-07-16
WO2015010838A2 (en) 2015-01-29
US10601276B2 (en) 2020-03-24
CN105409098A (en) 2016-03-16

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